Yes I think that's ok if the session has a meditation teacher and isn't less than one hour. Buddhist centres usually have to find the money for overheads such as rent for the room, or for the property, lighting, heating etc.

It isn't usual to have to pay to go into a Buddhist shrine room to meditate alone though.

However, the Samatha Trust (which is Theravada) in the UK, runs teacher led meditation classes (and I think they do some sutta study ) costing about 4 or £5 - to cover costs for the room hire.... and they also have a retreat facility in Wales.